AngularJS 0.9.11 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 312226 bytes (304.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 60856 bytes (59.4k, 19%).

After GZIP compression these minified files vary in size:

Boot	27402 bytes (26.8k)	CDN
Baidu	24805 bytes (24.2k)	CDN
cdnjs	24733 bytes (24.2k)	CDN
gzip -6 (default)	24656 bytes (24.1k)	local copy
gzip -9	24605 bytes (24.0k)	local copy
libdeflate -12	24108 bytes (23.5k)	local copy
7zip -mx=9 -tgzip	23800 bytes (23.2k)	local copy
zultra	23717 bytes (23.2k)	local copy
kzip -s0 -rn -b3	23706 bytes (23.2k)	local copy
pigz -11 -n	23702 bytes (23.1k)	local copy
Zopfli	23671 bytes (23.1k)	local copy
Zopfli (defluff)	23670 bytes (23.1k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.9.11 file, ETag caching is available and
if your browser doesn't support GZIP decompression then the uncompressed version will be sent.

Currently best Zopfli settings

Save 1062 bytes by using my AngularJS 0.9.11 Zopfli version instead of the best available CDN (4.49% smaller than cdnjs, 23671 vs. 24733 bytes):

Download

You can use my super-compressed files for whatever purpose you like as long as you respect the library's original license agreement.
There are no restrictions from my side - but please avoid hot-linking if you run a high-traffic website.

These command-line settings yielded the best compression ratio so far (Linux version of zopfli-krzymod):
zopfli --i100000 --mb8 --mls32 --bsr7 --lazy --ohh

(found February 5, 2016)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	32	--mls32
block splitting recursion	7	--bsr7
lazy matching in LZ77	yes	--lazy
optimized Huffman headers	yes	--ohh
initial random W for iterations	1	--rw1
initial random Z for iterations	2	--rz2

Even Smaller Files Thanks To Defluff

Zopfli's output can be further optimized by the defluff tool.
In this particular case, defluff saves 1 more byte (23670 bytes).

Download

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://code.angularjs.org/0.9.11/angular-0.9.11.min.js --location | md5sum
a01e6236400b1bfce050d3558d2a81cc -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.zopfli.js.gz | md5sum
a01e6236400b1bfce050d3558d2a81cc -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.11/angular-0.9.11.min.js --location | sha1sum
d159c77b7c1ee4522e98f2cac5501cc966866ad1 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.9.11.min.zopfli.js.gz | sha1sum
d159c77b7c1ee4522e98f2cac5501cc966866ad1 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	27402 bytes	a01e6236400b1bfce050d3558d2a81cc	March 18, 2015 @ 10:02
cdnjs	24733 bytes	a01e6236400b1bfce050d3558d2a81cc	March 28, 2014 @ 14:15

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	24805 bytes	c11f2ab45fcb544b09fabbe4dff61c35	only whitespaces differ	June 5, 2014 @ 10:05

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.8.2, 1.8.1, 1.8.0,
1.7.9, 1.7.8, 1.7.7, 1.7.6, 1.7.5, 1.7.4, 1.7.3, 1.7.2, 1.7.1, 1.7.0,
1.6.10, 1.6.9, 1.6.8, 1.6.7, 1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.11, 1.5.10, 1.5.9, 1.5.8, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3, 1.5.2, 1.5.1, 1.5.0,
1.4.14, 1.4.13, 1.4.12, 1.4.11, 1.4.10, 1.4.9, 1.4.8, 1.4.7, 1.4.6, 1.4.5, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0,
1.3.20, 1.3.19, 1.3.18, 1.3.17, 1.3.16, 1.3.15, 1.3.14, 1.3.13, 1.3.12, 1.3.11, 1.3.10, 1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0,
1.2.32, 1.2.31, 1.2.30, 1.2.29, 1.2.28, 1.2.27, 1.2.26, 1.2.25, 1.2.24, 1.2.23, 1.2.22, 1.2.21, 1.2.20, 1.2.19, 1.2.18, 1.2.17, 1.2.16, 1.2.15, 1.2.14, 1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0,
1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.19, 0.9.18, 0.9.17, 0.9.16, 0.9.15, 0.9.14, 0.9.13, 0.9.12, 0.9.11, 0.9.10, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:

Size	Improvement	Parameters	Found
23671 bytes	-1 byte	zopfli --i100000 --mls32 --bsr7 --lazy --ohh	February 5, 2016 @ 12:34
23672 bytes	-2 bytes	zopfli --i10000 --mls32 --bsr7 --lazy --ohh	November 26, 2015 @ 11:05
23674 bytes	-4 bytes	zopfli --i1000 --mls32 --bsr7 --lazy --ohh	September 20, 2015 @ 20:05
23678 bytes	-4 bytes	zopfli --i1000 --mls2048 --bsr6 --lazy --ohh	September 7, 2015 @ 22:24
23682 bytes	-3 bytes	zopfli --i1000 --mls1024 --bsr9 --lazy --ohh	September 7, 2015 @ 22:24
23685 bytes	–	zopfli --i100 --mls4096 --bsr16 --lazy --ohh	September 7, 2015 @ 16:09

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on July 20, 2020 @ 12:51.

Heatmaps

This Zopfli heatmap visualizes how compression changes when modifying the --bsr and --mls parameter.
Cell's contents is the best filesize achieved (in bytes, hover with mouse over cells to see number of iterations).

Good parameters are green, bad are red. The best and worst are bold as well.
The brightness of the blue background color indicates how many iterations were processed:
10,000 or 100,000.

bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
2	23736	23737	23737	23740	23698	23698	23685	23688	23692	23682	23697	23706	23708	23698	23696
4	23683	23685	23687	23695	23677	23681	23696	23692	23694	23703	23677	23684	23687	23687	23683
6	23677	23678	23700	23700	23676	23683	23679	23682	23686	23690	23677	23684	23702	23688	23680
7	23681	23680	23682	23684	23671	23685	23684	23684	23676	23680	23687	23677	23683	23689	23680
8	23679	23701	23699	23695	23695	23682	23678	23680	23677	23685	23684	23687	23680	23687	23682
9	23681	23681	23677	23678	23679	23679	23678	23689	23679	23680	23677	23677	23680	23687	23683
10	23682	23680	23677	23678	23679	23679	23679	23677	23681	23679	23680	23677	23677	23688	23679
11	23678	23679	23676	23678	23678	23679	23678	23679	23680	23681	23677	23680	23679	23691	23681
12	23680	23678	23678	23679	23678	23678	23678	23677	23681	23680	23677	23684	23681	23689	23681
13	23680	23680	23677	23678	23678	23678	23677	23676	23681	23681	23677	23680	23678	23687	23679
14	23681	23680	23676	23678	23677	23679	23679	23679	23680	23679	23679	23677	23688	23700	23680
15	23679	23679	23676	23678	23678	23679	23686	23684	23687	23683	23677	23677	23679	23688	23680
16	23686	23690	23686	23677	23677	23679	23683	23677	23680	23679	23678	23677	23683	23687	23679
17	23678	23679	23676	23679	23684	23679	23678	23679	23680	23680	23675	23677	23679	23678	23680
18	23680	23681	23677	23679	23677	23679	23680	23689	23682	23681	23677	23677	23679	23690	23681
19	23679	23682	23678	23681	23679	23679	23680	23678	23680	23680	23680	23678	23679	23690	23686
20	23679	23681	23678	23679	23676	23679	23680	23676	23681	23678	23677	23678	23677	23687	23678
21	23680	23681	23678	23680	23677	23679	23680	23678	23681	23681	23678	23677	23679	23700	23677
22	23681	23680	23678	23683	23677	23679	23680	23682	23681	23681	23678	23677	23686	23690	23681
23	23679	23679	23678	23678	23677	23678	23679	23678	23680	23680	23679	23677	23680	23680	23683
25	23680	23680	23677	23678	23678	23678	23678	23677	23681	23680	23681	23679	23680	23692	23680
30	23679	23681	23677	23682	23678	23679	23678	23679	23680	23681	23677	23677	23679	23680	23681
40	23678	23678	23677	23677	23680	23678	23678	23679	23681	23680	23678	23677	23680	23691	23681

Due to the Monte Carlo design of my search algorithm, not all parameters have reached the same number of iterations yet:

Iterations	Min. Bytes	Reduction	Coverage
100	23684 bytes	–	100%
1,000	23674 bytes	-10 bytes	100%
10,000	23672 bytes	-2 bytes	100%
100,000	23671 bytes	-1 byte	0.29%
1,000,000	–	–	–
10,000,000	–	–	–

KZIP has far less options available for tuning/optimization. I only played around with the number of blocks (parameter -n):

Blocks	Min. Bytes	Compared To Best Zopfli	Compared To Best KZIP
(any)	23760 bytes	+89 bytes (+0.38%)	+54 bytes
1	24173 bytes	+502 bytes (+2.12%)	+467 bytes
2	23763 bytes	+92 bytes (+0.39%)	+57 bytes
3	23706 bytes	+35 bytes (+0.15%)	–
4	23721 bytes	+50 bytes (+0.21%)	+15 bytes
5	23724 bytes	+53 bytes (+0.22%)	+18 bytes
6	23746 bytes	+75 bytes (+0.32%)	+40 bytes
7	23774 bytes	+103 bytes (+0.44%)	+68 bytes
8	23808 bytes	+137 bytes (+0.58%)	+102 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
However, support for Brotli is constantly growing - for example, your browser actually supports it !

Algorithm	Program	Parameters	Size	Compared To Best Zopfli
ZPAQ (Wikipedia)	zpaq	zpaq -method 69	20723 bytes	-2948 bytes (-12.45%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21315 bytes	-2356 bytes (-9.95%)
Brotli (Wikipedia)	brotli	brotli -q 11	21986 bytes	-1685 bytes (-7.12%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	22336 bytes	-1335 bytes (-5.64%)
LZMA2 (Wikipedia)	xz	xz -9	23264 bytes	-407 bytes (-1.72%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	23797 bytes	+126 bytes (+0.53%)
Zstandard (Wikipedia)	zstd	zstd -19	23953 bytes	+282 bytes (+1.19%)

Detailled Analysis

I wrote a DEFLATE decoder in Javascript. Click the button below to start a client-side analysis of the smallest gzipped files (may take a second):

Load and Parse Data

Notes: pigz is a fast open source multi-threaded implementation of gzip written by one of the original authors of gzip.
However, when using compression level 11, pigz actually switches to the slower Zopfli algorithm and isn't multi-threaded anymore.
KrzyMOD's extensions to Zopfli offer the highest level of configuration and is therefore used for my brute-force search.
Ken Silverman wrote the closed-source KZIP compression program and Jonathon Fowler ported it to Linux.
Defluff was created by Joachim Henke; DeflOpt is a tool by Ben Jos Walbeehm.

website made by Stephan Brumme in 2015 and still improving in 2025.
all timestamps are displayed in central european time. see my changelog.
no flash, not even images or external css files - and everything squeezed into a single html file.
which was handsomely compressed before releasing it into the wild internet - obviously.

please visit my homepage and my blog, too.
email: minime (at) stephan-brumme.com

All trademarks are property of their respective owners. You know, the boring legal stuff.